"According to preliminary reports, the explosion killed three and left another two injured. Besides, three people are missing," the source said.
He added that some ammonal explosive had gone off in one of the plant’s workshops. "A technological process disruption is believed to have caused the explosion," the source said, adding that "a fire broke out after the blast, engulfing an area of 100 square meters." Firefighters are working at the scene.
"The blaze has been categorized as a three-alarm fire," the source said.
The Sverdlov plant is the biggest producer of industrial explosives, de
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